如何在python中删除nonAscii字符 [英] How to remove nonAscii characters in python

问题描述

这是我的代码：

#!C:/Python27/python
# -*- coding: utf-8 -*-
import requests
from bs4 import BeautifulSoup
import urllib2
import sys
import urlparse
import io

url = "http://www.dlib.org/dlib/november14/beel/11beel.html"
#url = "http://eqa.unibo.it/article/view/4554"
#r = requests.get(url)
html = urllib2.urlopen(url)
soup = BeautifulSoup(html, "html.parser")
#soup = BeautifulSoup(r.text,'lxml')

if url.find("http://www.dlib.org") != -1:
    div = soup.find('td', valign='top')
else:
    div = soup.find('div',id='content')

f = open('path/file_name.html', 'w')
f.write(str(div))
f.close()

抓取这些网页时，我发现一些非AScii字符进入了从该脚本编写的html文件中，我需要将其删除或解析为可读字符。
有什么建议吗？谢谢

Scraping those webpages i've found some nonAScii characters into the html file written from this script that i need to remove or solve into a readable chars. Any advice? Thanks

推荐答案

字符为8字节（0-255），ASCII字符为7字节（0-127），因此您可以只需将ord值低于128的所有字符丢弃

characters are 8 byte (0-255), ascii chars are 7 byte (0-127), so you can simply drop all chars with a ord value below 128

chr将整数转换为字符，或将ord转换为整数。

chr convert a integer to a character, ord converts a character to an integer.

text = ''.join((c for c in str(div) if ord(c) < 128)

这应该是您的最终代码

#!C:/Python27/python
# -*- coding: utf-8 -*-
import requests
from bs4 import BeautifulSoup
import urllib2
import sys
import urlparse
import io

url = "http://www.dlib.org/dlib/november14/beel/11beel.html"
#url = "http://eqa.unibo.it/article/view/4554"
#r = requests.get(url)
html = urllib2.urlopen(url)
soup = BeautifulSoup(html, "html.parser")
#soup = BeautifulSoup(r.text,'lxml')

if url.find("http://www.dlib.org") != -1:
    div = soup.find('td', valign='top')
else:
    div = soup.find('div',id='content')

f = open('path/file_name.html', 'w')
text = ''.join((c for c in str(div) if ord(c) < 128)
f.write(text)
f.close()

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